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JOURNAL OF ENTOMOLOGY AND ZOOLOGY 65 
After being restricted to a honey diet for several days, the 
wasps became cannibals. 
In a preliminary note by M. J. Rosenau and Chas. T. Brues, 
in Psyche for December, 1912, there is a statement concerning 
the transmission of poliomyelitis through the agency of Sto- 
moxys calcitrans. 
They have apparently transferred the virus of poliomyelitis 
from monkey to monkey through the bite of the stable fly, 
Stomoxys calcitrans. This does not appear to be simply a 
mechanical transference, but rather a biological one, requiring 
a period of extrinsic incubation in the intermediate host. 
NEUE BEITRAGE ZUR KENNTNIS DER TERMITO- 
PHILEN UND MYRMECOPHLIEN 
EK. Wasmann Zeit. f. Wiss. Zool. CI Bd., 1 Heft. 1912. 
This important paper of Wasmann gives an account of many 
new species of Coleoptera which are found as guests in ant 
nests. Of the family Staphylinide there are eight new species 
described. The family Pselaphide has four described under it. 
The family Thorictide has three. The family Tenebrionide has 
one new species. There is a very full account given of all of these 
and others. The author from the light of his studies is of the 
opinion that the guest habit could not have arisen through 
‘‘natural selection’’. He thinks that natural selection is not the 
chief factor in organic evolution, although it is a factor. He 
believes that the guest habit has arised through spontaneous 
variation. 
DER GESCHLECHTSAPPARAT VON DYTISCUS MAR- 
GINALIS UL. 
Carl Demandt Zeit. f. Wiss. Zool. CII Bd., 2 Heft. 1912. 
This long paper is a detailed description of the sexual organs. 
There is an account of the organs in both sexes, including 
histological details. There are 128 pages and 74 text figures. 
